Closure for containers



G. L. OH MART June 1 1930.

CLOSURE FOR CONTAINERS Filed April 25, 1928 INVENTOR Grcggston L. Ohmart ATTORNEY Patented June 17, 1930 I v UNITED STA TES PATENT OFFICE.

emvsron L. onmmr, or DETROIT, MICHIGAN CLOSURE FOR CONTAINERS Application filed April 23,

This invention relates to a closure for containers, and has special reference to a closure adapted for the so-called collapsible tube.

It is appreciated that efforts have been heretofore made to provide a closure of this 7 manufacturing at costs which are such as to render the article commercially practical.

' It must also be ofsuch construction to maintain an effective positive seal for the contents of the container over a long'period of time. Some of the heretofore proposed structures are too expensive to ma e, while-others do not effect a seal which issuificient to maintain the original condition ofthe contents over a long period of time. i

The present invention aims to provide an improved closure which possesses these es-" sential features. The construction is simbe had so that the contents will not deteriorate.

y In the accom ani ing drawings:

. Fi ..1 is a si e e e ational view'of a collapsible tube showing the closure applied thereto.

Fig. 2 is a vertical sectional view taken through the closure construction.

' Figs. 3 and 4 are sectional views taken res 'ective'ly on line 3-3 and 44 of Fig. 2.-

ig. 5 isa side elevation, somewhat enlarged, showing the closure in open position.

1928. serial No. 272,068.

The drawings depict a collapsible tube 1 provided with a neck 2 for the discharge of the contents.- This neck of the tube may be formedso as to act as one of the members of the closure, and for this purpose is provided with a circular shoulder 3 having a project ingstud 4. Above the central shoulder this element is shaped for receiving a cooperating part of the closure and for this purpose it may be advantageously of a cone shape.

The extreme end is provided with a stud 5.

The construction thus described may be suit ably formed ofpne integral piece of metal, but if desirable the projectione and stud 5 may be of separate pieces. i

A discharge passageway 6 extends through theneck, and through one side of the cone shaped portion, is a discharge outlet 7. Fiterably cork, and then fitted over the cork is a hollow conical shaped member 9 which may be provided with a knurled shoulder "ted over the conical part is a material 8, pref- 10. I This member 9 fits over the shoulder 3 and is provided with a channel 11 for receiving the projection 4. It is to be noted that the rotative movements of the member 9 are thus limited by the projection 4.

Both the cork element and the rotating element 9 have openings 7 and 7 respectively, for cooperation with the discharge opening 7. When the, rotative element is turned to one extreme end of its movement the openings in the members are aligned so that the contents of the tube may be discharged through the aligned openings, and when the rotative element is turned to the other extreme end of its movement the discharge 0 ening 7 is closed. The metal around the opening 7 can be'cham-. fered away as shown'at12, so that no substan'tial recess occurs for holding some of the discharged contents after the closure has been moved to close the discharge outlets.

The extreme end of the member 9 is provided with an aperture through which the stud 5 projects and after the parts have been assembled the stud 5 is turned-over to form a head 15 for holding the parts assembled.

This may be accomplished by spinning over the metal or riveting it. In some of the claims appended hereto the term riveting is used to mean broadly anykind of turning over method. This turningover of the stud 5 is accomplished in such a manner as to tie the assembly together tightly so that the cork insert is compressed. In other words, when the stud 5 is turned over, the rotative element is forced down tightly against the cork so that the cork is under compression. The cork insert is placed upon the conical neck so that its opening 7 is inalignment with the opening 7. This relative position is a permanent one and for the purpose of assurroughness provided by merely not finishing off the conical surface smoothly, as for example, a polishing action.

The manner in which the construction performs is not" diflicult to understand. When the container is filled at a factory, the rotative element 9 is positioned so that its opening is out of alignment with the openings in the neck portion of the top of the cork. In

I this position an elfective seal is provided so that the tube can be held in stock as above,

pointed out for an indefinite period. Due to the fact that the insert of cork is under compression, it tightly abuts against both the conical portion of the neck and the interior of the rotatable member, so that an effective air tight seal is provided. In use, the user merely turns the rotatable element for discharging a quantity of the contents, and then turns it back to disalign the openings.

The preferred shape which the parts take, is a shape shown substantially by the drawings. However, it is well within the invention to vary the angularity or steepness of the cone and in fact, the parts could be shaped so that instead of a conical formation, a substantially circular or even a flat construction would be had. However with the conical shape as shown, a very nice action is found to be had, in the compression of the cork.

The insert member is preferably of cork, although some other sealing substance could be used in place of the cork such as a'rubber composition, butit is preferable that the substance be more or less compressible or elastic sothat the sealing insert can be compressed to efl'ect the positive air tight seal.

This closure can be made as shown and described as being integral with a container, or-it can be made as a separate manufactured article adapted to be screw threaded or otherwise secured onto the customary screw thread ed neck of any commercial container or collapsible tube. Claims: 1. A closure for collapsible tubes or the like, comprising amember having a discharge opening, a cap mounted on said member and member, and which is held under compres-'- sion to seal the closure, said insert having an opening for alignment with the first mentioned openings.

2. A closure for collapsible tubes or the like, comprising a member having a discharge opening, a: cap mounted on saidmember and having a discharge opening, said members being secured together for relative rotational movement so that the openings can be aligned or disaligned, and-I a cork insert between the member and cap which extends entirelyaround said member and which is held under compresslon between the member and cap,

said inserthaving an opening for alignment with the first mentioned openings.

3. A closure for collapsible tubes or the like, comprising a member having a discharge opening, a layer of cork fitting over this member and provided with an opening, a cap rotatably mounted over the said member and provided with an opening for alignment or disalignment with the openingin the first named member, and means securing the said member and cap together, in such a manner as to maintain the cork under compression, saidcork and member being non-rotative relative toeach other but both rotative relative to the cap. I

' 4. A closure for collapsible tubes or the like, comprising a member having a discharge opening, a layer of cork fitting over this member and provided with an opening in alignment with the first mentioned opening, a cap rotatably mounted over the said member and layer of cork providedwith an opening for alignment or disalignment with the first mentioned openings, and means securing the said member andcap together in such a manner as to malntam the cork under compression, said cap bemg rotatable relative to "the cork insert, and means fixing the cork insert and member together against relative movement.

5. A closure for collapsible tubes or the like, comprising a member having a discharge opening, a layer of cork fitting over this member and providedwith an o ening in alignment with -the first'mentione opening, a cap rotatably mounted overthe said member and layer of cork and provided with an opening for alignment or disalignment with I the first mentionedopenings, and means securing the said member and cap together in such a manner as to maintain the cork under compression, said cap being rotatable relative to the cork insert, the said member bein provided with a roughened formation for iting into the cork to prevent relative movement between the cork and member.

6. A closure for collapsible tubes or the like, comprising a substantially conical shaped member having a discharge opening in the side of the cone and having'a projection extending from the apex of the cone, a cap rotatably mounted on this conical member having an opening for alignment or disalignment with the opening in the member,

a cork insertbetween the conical member and movement, and an extension on the end of the neck member which projects through the cap, said extension being riveted over to hold the parts assembled.

In testimony whereof I aflix my signature.

GRAY STON L. OHMART.

the cap having an opening for alignment V with the opening in said member, the said cap having an opening. in its end through i which the projection on the conical member projects, and the material of the stud being turned over against the cap and for holding the cap against the cork tightly sothat the cork is under compression.

7. A closure for collapsible tubes or the like, comprising a member substantially conical in shape provided with an outlet through its side, an extension projecting from the apex of the cone, a cap fitting over the conical member and having a hole through which the extension extends, an insert of compres sible material between the conical member and the cap having an opening for alignment with the openingin the conical member, said 1 cap having an opening for alignment or dis- "her, and the said extension being riveted over alignment with opening in said conical memto forcibly hold the cap against the cork to thus maintain the cork under compression.

8. A, closure for collapsible tubes or the like, comprising a neck memberon the tube the end bf which is closed and which is shaped substantially in conical form, said neck mem- "ber having a discharge outlet passing latrally through the wall thereof, a layer of sealing substance extending entirely around the neck member, and a cap member rotatably mounted on the neck member, said layer of sealing substance having an openin and the cap having an opening adapted or alignment or disalignment with the first mentioned openings in different positions of its rotative movement.

9. A closure for collapsible tubes or the like, comprising a neck member on the tube the end of which is closed and which is shaped I substantially in conical form, said neck mem- 

